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SJ Gauge stainless steel pressure gauge with laser-welded case
SJ Gauge stainless steel pressure instrument with laser-welded case
  1. SJ Gauge stainless steel pressure gauge with laser-welded case
  2. SJ Gauge stainless steel pressure instrument with laser-welded case

Stainless Steel Pressure Gauge, Laser Welding

Model: PRDR.W
  • Integrally formed without any seams to avoid leakage effectively
  • Vent valve and blow-out device (plug) for improved safety
  • Used in the petrochemical industry, power engineering, and sewage treatment
  • Same specifications as WIKA-232.50/233.50
  • Responsive after-sales service / Customizable
  • High quality / One-year warranty
  • Product images are for reference only. Final specifications are based on the confirmed order.
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Description

PRDR.W is an all-stainless-steel pressure gauge with a laser-welded case for excellent leak tightness. Safety features include a vent valve and a blow-out device. It is available with a SUS304 or SUS316 case and a SUS316L process connection, covering ranges from 0–0.6 kgf/cm² to 0–1600 kgf/cm². Accuracy is up to ±1.0% of full scale for 4-inch and 6-inch models. Designed for petrochemical plants, power engineering, water treatment, and other demanding industrial applications, it supports glycerine or silicone-oil filling and bottom, back, or flange mounting. Its specifications are comparable to WIKA 232.50/233.50.

Product Images

Laser-welded stainless steel pressure gauge with valve and siphon for high-temperature lines and on-site maintenance.
Laser-welded stainless steel pressure gauge with valve and siphon for high-temperature lines and on-site maintenance.
Oil-free pressure gauge with 1/4” and 6 mm tube adapter for precise sealing
Oil-free pressure gauge with 1/4” and 6 mm tube adapter for precise sealing
Designed with cooling neck for cryogenic environment
Designed with cooling neck for cryogenic environment
Laser-welded stainless steel pressure gauge with diaphragm seal for extreme cold temperature applications.
Laser-welded stainless steel pressure gauge with diaphragm seal for extreme cold temperature applications.
Tantalum diaphragm offers superior acid resistance
Tantalum diaphragm offers superior acid resistance
5-inch large dial offers high visibility and durability
5-inch large dial offers high visibility and durability
Safety vent device prevents internal overpressure damage
Safety vent device prevents internal overpressure damage
Grease-free design for high purity oxygen applications
Grease-free design for high purity oxygen applications
Stainless steel tag plate for easy gauge identification
Stainless steel tag plate for easy gauge identification
6-inch large dial with back flange for surface mount
6-inch large dial with back flange for surface mount
6-inch bottom entry gauge with a large clear scale
6-inch bottom entry gauge with a large clear scale
Polar cold design with cooling neck for low temps
Polar cold design with cooling neck for low temps
Centre back entry, all stainless steel, stable mount
Centre back entry, all stainless steel, stable mount
6-inch dial with set pointer for easy range control
6-inch dial with set pointer for easy range control
4-inch rear flange for secure surface mounting
4-inch rear flange for secure surface mounting
Adjustable limit pointer for easy pressure monitoring
Adjustable limit pointer for easy pressure monitoring
Safety blow-out device with premium box packaging
Safety blow-out device with premium box packaging
Integrated safety vent for reliable overpressure protection
Integrated safety vent for reliable overpressure protection
Robust gauge designed for 600bar high-pressure tasks
Robust gauge designed for 600bar high-pressure tasks
3-inch dial with hygienic tri-clamp connection
3-inch dial with hygienic tri-clamp connection
3-inch SS gauge with tri-clamp for easy cleaning
3-inch SS gauge with tri-clamp for easy cleaning
6-inch large SS dial for clear long-distance reading
6-inch large SS dial for clear long-distance reading
Full stainless steel body for durable industrial use
Full stainless steel body for durable industrial use
Red drag pointer to record peak pressure values
Red drag pointer to record peak pressure values
4-inch lower back mount ideal for panel installs
4-inch lower back mount ideal for panel installs
4-inch lower back mount SS gauge for panel space
4-inch lower back mount SS gauge for panel space
6-inch large SS gauge for industrial measurement
6-inch large SS gauge for industrial measurement
4-inch lower mount with front flange for panels
4-inch lower mount with front flange for panels
Full SS lower mount flange gauge for anti-corrosion
Full SS lower mount flange gauge for anti-corrosion
Welded safety gauge with blowout back for security
Welded safety gauge with blowout back for security
Remote diaphragm with double cooling for harsh acids
Remote diaphragm with double cooling for harsh acids
Compact mini gauge with fittings for easy assembly
Compact mini gauge with fittings for easy assembly
Laser welded SS housing for superior leak protection
Laser welded SS housing for superior leak protection
Front dial laser welding for long-term durability
Front dial laser welding for long-term durability
Multiple views of laser welded gauge quality
Multiple views of laser welded gauge quality
6-inch recessed pressure gauge with flange and eccentric connection for panel-mounted applications.
6-inch recessed pressure gauge with flange and eccentric connection for panel-mounted applications.

Downloads

English

SJ-Gauge-prdr.w-pressure-gauge-datasheet-en

Traditional Chinese

SJ-Gauge-prdr.w-pressure-gauge-datasheet-ch

Specifications

Mounting configurationBottom mount or back mount, with or without flange
Nominal size2.5", 4", 6"
Scale ranges
  • 0 ... 0.6 kgf/cm² to 0 ... 1600 kgf/cm²
  • or equivalent ranges for pressure, vacuum, or compound pressure
Accuracy
  • 2.5": ±1.6% F.S.
  • 4", 6": ±1.0% F.S.
Process connection
  • 316L SS
  • 1/4, 3/8, 1/2
  • PT, G, NPT, M
Case
  • 304 SS or 316 SS
  • Blow-out device on the case circumference at 12 o'clock for NS 63 [2 ½"] and on the case back for NS 100 [4"] and NS 160 [6"]
WindowSafety glass
DialAluminum alloy, black scale on white
Pointer
  • Black aluminum alloy
  • 2.5": normal
  • 4", 6": adjustable
Movement304 SS
Case fillingUnfilled, glycerine-filled, or silicone-oil filled
Ambient temperature
  • -40°C ... 60°C (unfilled)
  • -20°C ... 60°C (liquid-filled)
Process medium temperature
  • ≤200°C (unfilled)
  • ≤100°C (liquid-filled)
Ingress protectionIP65
Optional accessoriesDrag pointer, adjustable set pointer

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